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In photography, a filter is a camera accessory consisting of an optical filter that can be inserted in the optical path. The filter can be a square optical glass mounted on a holder accessory; or, more commonly, a glass or plastic disk with a metal or plastic ring frame, which can be screwed in front of the lens. Photography is the process of making pictures by means of the action of light. ...
A camera is a device used to take pictures (usually photographs), either singly or in sequence, with or without sound recording, such as with video cameras. ...
Coloured and Neutral Density filters An optical filter is a device which selectively transmits light having certain properties (often, a particular range of wavelengths, that is, range of colours of light, or polarizations), while blocking the remainder. ...
A lens. ...
Use and Effect Filters are commonly used in black and white photography to manipulate contrast. For example a yellow filter will enhance the contrast between clouds and sky by darkening the latter. Orange and red filters will have a stronger effect. Contrast has several meanings: // Visual perception In visual perception, contrast is the difference in visual properties that makes an object (or its representation in an image) distinguishable from other objects and the background. ...
Effects of using a polarizer and a red filter in black-and-white photography Filters are less common in color photography and even less in digital photography. A major use is to compensate the effects of lighting not balanced for the film stock's rated color temperature (usually 3200K for professional tungsten lights and 5500K for daylight): e.g., the 80A blue filter used with daylight film corrects the orange/reddish cast of household tungsten lighting, while the 85 used with tungsten film will correct the bluish cast of daylight. Color correction filters are identified by numbers which sometimes vary from manufacturer to manufacturer. Image File history File links El_Gouna_Egypt_BW_Filter_Comparison_EN.png The effect of using polarizer and red filter in black-and-white photography. ...
Image File history File links El_Gouna_Egypt_BW_Filter_Comparison_EN.png The effect of using polarizer and red filter in black-and-white photography. ...
White light is commonly described by its color temperature. ...
 Although the 80A filter is mainly used to correct for the excessive redness of tungsten lighting, it can also be used to oversaturate scenes that already have blue. The photo on the left was shot with a polarizer, while the one on the right was shot with a polarizer and an 80A filter Often in color photography, a polarizing filter will be used to darken overly light skys. The filter also whitens clouds and increases the contrast between the clouds and the sky. Atmospheric haze is also reduced and overall color saturation is increased. Comparison between photograph with and without 80A blue filter I release this image file to be used under the terms of the GNU Free Documentation License. ...
Comparison between photograph with and without 80A blue filter I release this image file to be used under the terms of the GNU Free Documentation License. ...
General Name, Symbol, Number tungsten, W, 74 Chemical series transition metals Group, Period, Block 6, 6, d Appearance grayish white, lustrous Atomic mass 183. ...
 The effects of a circular polarizer on the sky in a color photograph. The negative aspects of using filters, though often negligible, include the possibility of loss of image definition if using dirty or scratched filters, and loss of some exposure. The former is best avoided by careful use and maintenance of filters, while the latter usually will not be a problem if planned out properly. ImageMetadata File history File links Download high resolution version (2484x946, 874 KB) The effects of a circular polarizer in a color photograph. ...
ImageMetadata File history File links Download high resolution version (2484x946, 874 KB) The effects of a circular polarizer in a color photograph. ...
A photograph with an exposure time of 25 seconds In photography, exposure is the total amount of light allowed to fall on the sensor (photographic film or CCD) during the process of taking a photograph. ...
Filters can be used also for special effects. A diffusion filter softens subjects and generates a dreamy haze. Photon diffusion referes to a situation where photons travel through a material with a high optical depth and very short mean free path. ...
Filter types See also Filter (optics) Coloured and Neutral Density filters An optical filter is a device which selectively transmits light having certain properties (often, a particular range of wavelengths, that is, range of colours of light, or polarizations), while blocking the remainder. ...
See also: List of photographic equipment makers An infrared filter is a filter to remove visible light and only pass infrared light in different wavelenghts. ...
In photography and optics, a neutral density filter or ND filter is a grey filter;. In theory, a neutral density filter reduces light of all wavelengths or colors equally, much like inexpensive sunglasses. ...
A sunset at Zion National Park. ...
Something which is monochromatic has a single color. ...
A polarizer is a device that converts an unpolarized or mixed-polarization beam of electromagnetic waves (e. ...
// List of camera manufacturers Alpa ARCA Swiss Cambo Canham Canon Contax Cosina Ebony (camera maker) Fotoman Fujifilm Gandolfi Gowland Graflex Hasselblad Holga Horseman Kiev-Arsenal (photo camera) Kodak Konica Minolta Kyocera Leica Leningradskoye Optiko Mechanichesckoye Obyedinenie(LOMO) Linhof Littman Mamiya Minox Nikon Olympus Panasonic Pentacon (Praktica) Pentax Polaroid Ricoh Rollei...
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